158 
Eaton, Amos, mentioned, 7 
Fallkill Iron Company, 115 
Faulting, 16, 34, 63; effect on the 
magnetite bodies, 36 
Fenner, C. N., quoted, 209; 
tioned, 32 
Ferro hill mine, 99 
Fletcher mine, 90 
Folds, 32, 57 
Forest of Dean group, 44, 99-106 
Forest of Dean Iron Ore Company, 
19, 99 
Forest of Dean mine, 20, 33, 36, 61, 
OS FO); 7/2, WS CHOSS SSCHO, wey, 
p. 58; description, 99 
Forshee mine, 45, 57, 66; descrip- 
tion, I09 
Fort Montgomery, 6 
Fort Montgomery Iron Corporation, 
909 
Franklin, N. J., 8 
Franklin Furnace, N. J., 7, 32 
Franklin limestone, 7 
men- 
Gallows hill, 9 
Geologic relations of the ores, 48 
Gordon, F. W., quoted, 119 
Granites, 7 
Graton, L. C., mentioned, 71, 112, 
120 
Greenwood group, 44, 97 
Grenville, 48 
Hard mine, 43, 90 
Hardyston quartzite, 7 
Hibernia, 22 
Highlands, 5, 7-30, 31, 32 
Hobbs, William H., mentioned, 26 
Hoffman, W. H., quoted, 119; men- 
tioned, 118 
Hogencamp mine, 97 
Hollick, Arthur, quoted, 23 
Holzwasser, Florrie, mentioned, 32, 
35, 45 
Hornblendic gneiss, 51 
Horton, William, quoted, 8, 76, 87, 
93, 94, 95, 108; mentioned, 8 
Hudson Iron Company, 99 
NEW YORK STATE MUSEUM 
Hudson river group, 18 
Hudson river phyllite, 9 
Hudson river slates, 14, 27, 28, 34, 
35 
Inherited structures, 72 
Inwood limestone, 28, 35 
Iron mines, report on, 19 
Irving, J. D., mentioned, 100 
Jenny Jump mountain, 22, 23 
Keating, W. H., mentioned, 7, 23 
Kemp, James F., acknowledgments 
to, 6; quoted, 23, 27, 690; men- 
tioned, I7, 59, I00, 102 
Kingston Iron Ore Company, 114 
Kitchell, William, mentioned, 10, 23 
Koeberlin, F. R., quoted, 21, 119, 123; 
mentioned, 20, 70, I17 
Kummel, Henry B., mentioned, 25 
Kunhardt, W. B., quoted, 119 
Lake Mahopac, 6 
Lake Mahopac Iron Company, 124 
ake “mine, 36) 42))/629103. 725748 
75, 90; sketch, fig. p. 60; descrip- 
tion, 76; walls of the ore body, 
77; slip-zone, 78; ore, 79 
Landis, Edward K., mentioned, 20, 
122 
Layers, 55 
Lenses, 55; fig. p. 56 
Limestones, 8; statement of Mather 
concerning, 10 
Lit-par-lit effects, 20, 32, 37, 38, 49, 
51, 62, 85 
Long mine, 43, 64, 75, 90; descrip- 
tion, 93 
Losee gneiss, 24, 25, 28, 20, 54 
Lower ‘California mine, 42, 64, 753 
description, 83 
Lowerre quartzite, 28 
McCollum mine, 47, 118 
McLaughlin, D. H., mentioned, 71, 
Ti s120 
Magmatic control of 
evidence for, 72 
Magmatic origin, evidence for, 71 
replacement, 
